an Entity references as follows:
The Missa brevis Sancti Joannis de Deo, Hob. XXII:7, Novello 8, is a mass in B-flat major by Joseph Haydn. The missa brevis (short mass) was written around 1774 for the order of the Barmherzige BrĂ¼der (Brothers Hospitallers) in Eisenstadt, whose patron saint was John of God. Scored modestly for soprano, four-part mixed choir, two violins, organ and bass, it is known as the Kleine Orgelmesse (Little Organ Mass) due to an extended organ solo in the Benedictus movement.